GreatCircle class
#include <eckit/geo/GreatCircle.h>
Constructors, destructors, conversion operators
- GreatCircle(const PointLonLat&, const PointLonLat&)
- Great circle given two points in geographic coordinates.
Public functions
-
auto latitude(double lon) const -> std::
vector<double> - Great circle latitude given longitude, see http:/
/ www.edwilliams.org/ avform.htm#Int. -
auto longitude(double lat) const -> std::
vector<double> - Great circle longitude given latitude, see http:/
/ www.edwilliams.org/ avform.htm#Par. - auto crossesPoles() const -> bool
- If great circle crosses the poles (meridian/anti-meridian)
-
auto course() const -> std::
pair<double, double> - Calculate great circle course between two points.
Function documentation
std::
Calculate great circle course between two points.
Calculates the direction (clockwise from North) of a great circle arc between two points. Returns the direction (angle) of the arc at each, normalised to the range of atan2 (usually (-180, 180]). All input and output values are in units of degrees.